On Sun, 4 Jan 2015 02:31:50 +0100, Gabriel Zachmann said:
Could it be that System Preferences does still expect screen savers to
be compiled with garbage collection?
Probably. You can check if an app is built with GC using this:
I am trying to make my screensaver compile and run under Mavericks.
I haven’t touched the code for some years, and I haven’t recompiled it for a
few years.
I have the latest Xcode and Mac OS X 10.9.5 on a MacBookPro 2014.
When I opened the project, Xcode said that it had to convert it to ARC
I was just reviewing a team member's code on iOS 7 for reading the
CVPixelBuffer from a video frame, storing it in a UIImage and converting to
grayscale.
Was testing against 720p video in the iPad and was pretty surprised to see
memory leak faster than I've ever seen before, but only after
On Jun 4, 2014, at 12:24 , Alex Zavatone z...@mac.com wrote:
His response was Well, I was able to autorelease any offending bits within
the loop without a problem, what's the big deal?
I think the deeper problem is that a while loop of this kind in an
asynchronously executed block is a bit
On Jun 4, 2014, at 2:24 PM, Alex Zavatone wrote:
As it turned out, my coworker had created a dispatch_async thread to start
processing the video and within it, started at a framecount of 0, incremented
it within a while(true) loop and grabbed the frame every time there was a new
On Jun 4, 2014, at 4:07 PM, Ken Thomases wrote:
On Jun 4, 2014, at 2:24 PM, Alex Zavatone wrote:
As it turned out, my coworker had created a dispatch_async thread to start
processing the video and within it, started at a framecount of 0,
incremented it within a while(true) loop and
On Jun 4, 2014, at 4:02 PM, Quincey Morris wrote:
I think the deeper problem is that a while loop of this kind in an
asynchronously executed block is a bit of a code smell.
Exactly.
But I need to come up with an explanation of explain why that is a bad idea and
why it smells. I know it
On Jun 4, 2014, at 4:26 PM, Alex Zavatone wrote:
On Jun 4, 2014, at 4:07 PM, Ken Thomases wrote:
You have a misconception as illustrated in the above quotes. I think you
think of ARC as a garbage collector that needs idle time or for execution to
return to the frameworks in order to
On Jun 4, 2014, at 14:45 , Alex Zavatone z...@mac.com wrote:
But I need to come up with an explanation of explain why that is a bad idea
and why it smells
It smells because a computationally intensive while loop will stall the
dispatch queue that’s stuck on it.
If you’re programming with
Sweet. Thanks guys.
That's exactly what I needed to frame why this is bad to our former dot net guy.
Cheers.
On Jun 4, 2014, at 6:02 PM, Quincey Morris wrote:
On Jun 4, 2014, at 14:45 , Alex Zavatone z...@mac.com wrote:
But I need to come up with an explanation of explain why that is a
On Dec 28, 2012, at 12:59 AM, Quincey Morris
quinceymor...@rivergatesoftware.com wrote:
On Dec 27, 2012, at 22:37, Rick Mann rm...@latencyzero.com wrote:
So, the usual bit about references being weak by default in C structs (and
C++ classes) doesn't hold here.
Huh? References aren't weak
On Dec 27, 2012, at 22:37, Rick Mann rm...@latencyzero.com wrote:
So, the usual bit about references being weak by default in C structs (and
C++ classes) doesn't hold here.
Huh? References aren't weak by default anywhere.
Are you thinking of __usafe_unretained? That's not weak, just
On Dec 28, 2012, at 0:59 , Quincey Morris quinceymor...@rivergatesoftware.com
wrote:
Huh? References aren't weak by default anywhere.
Are you thinking of __usafe_unretained? That's not weak, just unmanaged by
ARC, and it's the only ownership qualifier allowed by ARC for struct members
Rick,
I'm no Obj-C language expert; in fact I'm pretty much a newbie. But I have had
some experience with smart pointers (boost, etc) from my C++ case.
Here's how I think of strong and weak references in ARC. (If the following is
wrong, I'm sure someone more knowledgeable than myself will set
On Dec 27, 2012, at 21:58 , Rick Aurbach r...@aurbach.com wrote:
Rick,
I'm no Obj-C language expert; in fact I'm pretty much a newbie. But I have
had some experience with smart pointers (boost, etc) from my C++ case.
Here's how I think of strong and weak references in ARC. (If the
On Dec 27, 2012, at 22:50 , Ludovic Nicolle lnico...@chezludo.com wrote:
hey, is your project/target by any chance having NSZombieEnabled in its flags?
there is/was a problem similar to this with zombies enabled so please make
sure this aint the case.
My project was NOT NSZombieEnabled,
I just wrote some Objective-C++ code. It's basically just a regular Obj-C
class, but makes some C++-style calls in its methods.
Anyway, I added an NSMutableData* ivar to my class, and set it with
mInputBuffer = [NSMutableData data];
in one of the methods. Subsequent accesses, however,
Every assignment will release the old one,so no leak.
From My iPhone
在 2012-10-29，下午7:34，Mike Abdullah cocoa...@mikeabdullah.net 写道：
On 29 Oct 2012, at 10:06, Vincent Habchi vi...@macports.org wrote:
Hi folks,
before aught else, all my thoughts to those of you in the Eastern coast that
Hi folks,
before aught else, all my thoughts to those of you in the Eastern coast that
are preparing themselves for a bunch of bleak days…
I’ve just a silly question (I know, I don’t post very often and I apologize for
that): I need to convert a HTML style string, with “ escapes” to normal
On 29 Oct 2012, at 10:06, Vincent Habchi vi...@macports.org wrote:
Hi folks,
before aught else, all my thoughts to those of you in the Eastern coast that
are preparing themselves for a bunch of bleak days…
I’ve just a silly question (I know, I don’t post very often and I apologize
for
Le 29 oct. 2012 à 12:34, Mike Abdullah cocoa...@mikeabdullah.net a écrit :
The code is a fairly inefficient to start with, but no, it's not going to
leak.
Thanks. I am aware of this, but since this code is going to be part of a
didactic article on writing a WMS client, I emphasize clarity
On 29 Oct, 2012, at 7:44 PM, Vincent Habchi vi...@macports.org wrote:
Le 29 oct. 2012 à 12:34, Mike Abdullah cocoa...@mikeabdullah.net a écrit :
The code is a fairly inefficient to start with, but no, it's not going to
leak.
Thanks. I am aware of this, but since this code is going to be
Le 29 oct. 2012 à 12:53, Roland King r...@rols.org a écrit :
Does CFURLCreateStringByReplacingPercentEscapes() not do this for you? I
often use it going the other way from text to escaped text, not just for
URLs.
AFAIK, CFURLCreateStringByReplacingPercentEscapes() substitues special chars
On 29 Oct 2012, at 12:01, Vincent Habchi vi...@macports.org wrote:
Le 29 oct. 2012 à 12:53, Roland King r...@rols.org a écrit :
Does CFURLCreateStringByReplacingPercentEscapes() not do this for you? I
often use it going the other way from text to escaped text, not just for
URLs.
On 29 Oct 2012, at 11:44, Vincent Habchi vi...@macports.org wrote:
Le 29 oct. 2012 à 12:34, Mike Abdullah cocoa...@mikeabdullah.net a écrit :
The code is a fairly inefficient to start with, but no, it's not going to
leak.
Thanks. I am aware of this, but since this code is going to be
Le 29 oct. 2012 à 14:34, Mike Abdullah cocoa...@mikeabdullah.net a écrit :
Well, you can ask CFXMLCreateStringByUnescapingEntities() to do this on OS X,
although if I recall all the CFXML functions have now sadly been deprecated.
The source code for it should still be available if you search
On Oct 29, 2012, at 6:55 AM, Vincent Habchi vi...@macports.org wrote:
Le 29 oct. 2012 à 14:34, Mike Abdullah cocoa...@mikeabdullah.net a écrit :
Well, you can ask CFXMLCreateStringByUnescapingEntities() to do this on OS
X, although if I recall all the CFXML functions have now sadly been
Le 29 oct. 2012 à 15:00, Kyle Sluder k...@ksluder.com a écrit :
On Oct 29, 2012, at 6:55 AM, Vincent Habchi vi...@macports.org wrote:
Actually, it's not. From the docs:
Note: Currently, only the standard predefined entities are supported;
passing NULL for entitiesDictionary is
On Oct 29, 2012, at 8:34 AM, Mike Abdullah cocoa...@mikeabdullah.net wrote:
On 29 Oct 2012, at 11:44, Vincent Habchi vi...@macports.org wrote:
Le 29 oct. 2012 à 12:34, Mike Abdullah cocoa...@mikeabdullah.net a écrit :
The code is a fairly inefficient to start with, but no, it's not
Le 29 oct. 2012 à 15:30, glenn andreas gandr...@me.com a écrit :
Given that there are also decimal (#DD;) and hexadecimal escape sequences
(#x;) in HTML, trying to support those through the use of a dictionary
of sequence - replacement is going to be impractical.
Hopefully, I have only
That’s blatant. […]
I meant obvious. I just read the use of “blatant” for “obvious” was incorrect.
My bad.
Vincent
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On 29 Oct 2012, at 13:55, Vincent Habchi wrote:
Le 29 oct. 2012 à 14:34, Mike Abdullah cocoa...@mikeabdullah.net a écrit :
Well, you can ask CFXMLCreateStringByUnescapingEntities() to do this on OS
X, although if I recall all the CFXML functions have now sadly been
deprecated. The source
Mike:
How are those accented characters represented in your HTML?
Thanks for pointing this. It turns out, after examination, that the accented
chars are already provided in UTF-8, and that only amp; and apos; need to be
translated. Strange. I was sure I saw other escapes around on some
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